Barrier thermal insulation coatings achieve thermal insulation purposes by blocking heat transfer
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2019-08-10
Barrier thermal insulation coatings achieve the purpose of thermal insulation by blocking heat transfer. The raw materials of barrier thermal insulation coatings are easy to obtain, the production equipment is simple, the input is small and the output is large
Barrier thermal insulation coatings achieve the purpose of thermal insulation by blocking heat transfer. The raw materials of barrier thermal insulation coatings are easy to obtain, the production equipment is simple, the input is small and the output is large, and the construction is convenient; the disadvantage of such coatings is that they have poor effect on reducing convection and radiation heat transfer, and the thermal insulation layer is thick, high water absorption, no vibration resistance, and short service life. In order to form a stable thermal insulation system, additional waterproof layers and external protective layers are required. The most widely used barrier thermal insulation coatings are composite silicate thermal insulation coatings. In recent years, composite silicate thermal insulation coatings have been recognized for building thermal insulation and have been widely used in practice. However, the coating still has defects caused by its own material structure, such as long drying cycle, large seasonal and climate influence on construction, poor impact resistance, large drying shrinkage, large moisture absorption rate, low bonding strength to walls, improper construction can easily cause large-scale hollowing and decoration needs to be further improved. Therefore, making full use of the technical advantages my country has achieved in this regard to further improve the comprehensive performance of composite silicate thermal insulation coatings is one of the future research focuses.
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